Pier protection structure for water transportation channel
By installing buoyancy rings and sliding rods on the bridge piers, the problem of the inability to adjust protective barriers in existing technologies has been solved. This has improved the stability of the bridge pier protective barriers above the water surface and reduced the impact force, thus enhancing the protective effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 镇江市港航事业发展中心
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-08
AI Technical Summary
The existing protective barriers around the bridge piers cannot automatically adjust according to the water level, resulting in poor protection when ships collide with the piers.
A bridge pier protection structure including a buoyancy ring and a sliding rod was designed. The buoyancy ring drives the protective barrier to slide on the chute, keeping it above the water surface at all times, and the impact force is reduced by a buffer mechanism.
This achieved a stable position for the bridge pier protective enclosure above the water surface, reducing the impact force during ship collisions and improving the effectiveness of bridge pier protection.
Smart Images

Figure CN224213231U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waterway technology, specifically a protective structure for waterway bridge piers. Background Technology
[0002] Bridge piers are substructures that support the bridge span and transfer dead loads and vehicle live loads to the foundation. Abutments are located on both sides of the bridge, with piers situated between the abutments. The function of piers is to support the bridge span structure; while abutments, in addition to supporting the bridge span structure, also connect to the embankment and prevent embankment landslides. To protect the abutments and embankment fill, protective and diversion works are often constructed on both sides of the abutments.
[0003] When ships are transporting goods by water, they usually need to pass under large bridges. When passing under bridges, there are many bridge piers, and some piers are arranged in a relatively dense manner, which may cause ships to collide with the piers. Therefore, protective barriers are often set on the surface of the piers. However, the current protective barriers are not easy to adjust according to the water level because they are set at a certain height. Therefore, we propose a protective structure for bridge piers in waterways. Utility Model Content
[0004] The purpose of this utility model is to provide a protective structure for bridge piers in waterways. This utility model, through the setting of buoyancy rings, ensures that the first and second protective barriers are always above the water surface, which facilitates the protection of the bridge pier body.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective structure for a waterway bridge pier, comprising a pier body, a plurality of sliding rods being provided on the surface of the pier body, each sliding rod having a groove inside; a first protective enclosure being provided on the outer side of the pier body, a buoyancy ring being fixedly connected to the bottom of the first protective enclosure; a plurality of sliders being fixedly connected inside the first protective enclosure, the sliders being slidably connected to the inside of the grooves; two fixing rings being fixedly connected to the surface of the first protective enclosure, each fixing ring having an annular groove on its surface; a second protective enclosure being fitted onto the surface of the first protective enclosure, the second protective enclosure having two sliding rings fixedly connected inside its interior to cooperate with the annular grooves; and a plurality of square grooves being provided on the surface of the second protective enclosure, each square groove having a buffer mechanism inside its interior.
[0006] Preferably, the buffer mechanism includes a fixed rod, which is fixedly connected to the inside of the square groove. A spring is sleeved on the surface of the fixed rod, the top of the spring is fixedly connected to the inside of the square groove, the bottom of the spring is fixedly connected to the top of the movable block, the movable block is slidably connected to the surface of the fixed rod, a movable plate is hinged to the front side of the movable block, a buffer plate is hinged to the other end of the movable plate, and the bottom of the buffer plate is hinged to the second protective barrier.
[0007] Preferably, the sliding ring has a plurality of balls inside, and the balls are arranged in an equally spaced ring shape.
[0008] Preferably, square sliding rods are fixedly connected to both sides of the slider, and the square sliding rods are slidably connected inside the sliding groove.
[0009] Preferably, there are several buffer plates, which are arranged in a ring shape at equal intervals.
[0010] Preferably, both sides of the sliding rod are fixedly connected to a fixing plate, and the inner side of the fixing plate is arc-shaped.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This invention utilizes a buoyancy ring, which generates buoyancy to allow the first and second protective barriers to slide on the surface of the chute. This ensures that the first and second protective barriers remain above the water surface, facilitating the protection of the bridge pier. Furthermore, when a ship presses against the second protective barrier, the sliding ring inside the second protective barrier rotates within the annular groove, thus dissipating the force and further reducing the impact intensity. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the three-dimensional bottom view structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the structure in which the first protective barrier and the second protective barrier are separated in this utility model;
[0016] Figure 4 This is a schematic diagram of the structure of the second protective barrier and the buffer plate of this utility model.
[0017] In the diagram: 1. Pier body; 2. First protective enclosure; 3. Second protective enclosure; 4. Buoyancy ring; 5. Sliding rod; 6. Slide groove; 7. Buffer mechanism; 71. Buffer plate; 72. Spring; 73. Moving block; 74. Movable plate; 75. Fixed rod; 8. Fixed ring; 9. Sliding ring; 10. Ball bearing; 11. Sliding block; 12. Square sliding rod; 13. Square groove; 14. Fixed plate; 15. Annular groove. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-4 As shown, a protective structure for a waterway bridge pier includes a pier body 1. Several sliding rods 5 are provided on the surface of the pier body 1, and grooves 6 are formed inside the sliding rods 5. A first protective enclosure 2 is provided on the outer side of the pier body 1. A buoyancy ring 4 is fixedly connected to the bottom of the first protective enclosure 2. Several sliders 11 are fixedly connected inside the first protective enclosure 2, and the sliders 11 are slidably connected to the grooves 6. Two fixing rings 8 are fixedly connected to the surface of the first protective enclosure 2, and annular grooves 15 are formed on the surface of the fixing rings 8. A second protective enclosure 3 is fitted onto the surface of the first protective enclosure 2. Two sliding rings 9 that cooperate with the annular grooves 15 are fixedly connected inside the second protective enclosure 3. Several square grooves 13 are formed on the surface of the second protective enclosure 3, and buffer mechanisms 7 are provided inside the square grooves 13.
[0020] The buffer mechanism 7 includes a fixed rod 75, which is fixedly connected inside the square groove 13. A spring 72 is sleeved on the surface of the fixed rod 75. The top of the spring 72 is fixedly connected to the inside of the square groove 13, and the bottom of the spring 72 is fixedly connected to the top of the movable block 73. The movable block 73 is slidably connected to the surface of the fixed rod 75. A movable plate 74 is hinged to the front side of the movable block 73, and a buffer plate 71 is hinged to the other end of the movable plate 74. The bottom of the buffer plate 71 is hinged to the second protective enclosure 3. With the buffer mechanism 7, when the ship hits the buffer plate 71, the ship squeezes the buffer plate 71, and then the movable plate 74 drives the movable block 73 to move. The movable block 73 squeezes the spring 72 upward. Due to the elastic force of the spring 72, the impact force is reduced.
[0021] The sliding ring 9 has several balls 10 inside, and the balls 10 are arranged in an evenly spaced ring shape. By setting the balls 10, the friction of the sliding ring 9 sliding inside the annular groove 15 can be reduced.
[0022] Square slide rods 12 are fixedly connected to both sides of the slider 11, and the square slide rods 12 are slidably connected inside the slide groove 6. The square slide rods 12 make the slider 11 slide more stably inside the slider 11.
[0023] There are several buffer plates 71, which are arranged in a ring at equal intervals. The buffer plates 71 can buffer impacts from various directions.
[0024] Both sides of the sliding rod 5 are fixedly connected to a fixing plate 14, and the inner side of the fixing plate 14 is arc-shaped. With the fixing plate 14, the sliding rod 5 can be fixed to the surface of the bridge pier by bolts.
[0025] Working principle: When ships pass under a bridge, collisions and friction often occur between the ship and the bridge pier. Due to the rise or fall of the water level, the buoyancy ring 4 generates buoyancy, which drives the first protective barrier 2 and the second protective barrier 3 to slide on the surface of the chute 6. This ensures that the first and second protective barriers 2 and 3 are always above the water surface, thus facilitating the protection of the bridge pier body 1. When a ship collides with the bridge pier, it first compresses the buffer plate 71. Then, the movable plate 74 drives the moving block 73 to move. The moving block 73 compresses the spring 72 upward. At the same time, due to the rotating connection of the sliding ring 9 on the inner side of the second protective barrier 3 inside the annular groove 15, when the buffer plate 71 is subjected to the force of the ship, it also drives the second protective barrier 3 to rotate on the outer side of the first protective barrier 2, thereby achieving the effect of unloading force and further reducing the impact force.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A protective structure for a waterway bridge pier, comprising a pier body (1), characterized in that: The surface of the pier body (1) is provided with several sliding rods (5), and the sliding rods (5) are provided with grooves (6). The outer side of the pier body (1) is provided with a first protective enclosure (2). The bottom of the first protective enclosure (2) is fixedly connected with a buoyancy ring (4). The interior of the first protective enclosure (2) is fixedly connected with several sliders (11). The sliders (11) are slidably connected to the interior of the grooves (6). The surface of the first protective enclosure (2) is fixedly connected with two fixing rings (8). The surface of the fixing rings (8) is provided with annular grooves (15). The surface of the first protective enclosure (2) is fitted with a second protective enclosure (3). The interior of the second protective enclosure (3) is fixedly connected with two sliding rings (9) that cooperate with the annular grooves (15). The surface of the second protective enclosure (3) is provided with several square grooves (13). The interior of the square grooves (13) is provided with a buffer mechanism (7).
2. The waterway bridge pier protection structure according to claim 1, characterized in that: The buffer mechanism (7) includes a fixed rod (75), which is fixedly connected to the inside of the square groove (13). A spring (72) is sleeved on the surface of the fixed rod (75). The top of the spring (72) is fixedly connected to the inside of the square groove (13), and the bottom of the spring (72) is fixedly connected to the top of the moving block (73). The moving block (73) is slidably connected to the surface of the fixed rod (75). A movable plate (74) is hinged to the front side of the moving block (73). A buffer plate (71) is hinged to the other end of the movable plate (74). The bottom of the buffer plate (71) is hinged to the second protective barrier (3).
3. The waterway bridge pier protection structure according to claim 1, characterized in that: The sliding ring (9) has a number of balls (10) inside, and the balls (10) are arranged in an equally spaced ring shape.
4. The protective structure for a waterway bridge pier according to claim 1, characterized in that: Both sides of the slider (11) are fixedly connected to square slide rods (12), and the square slide rods (12) are slidably connected inside the slide groove (6).
5. A protective structure for a waterway bridge pier according to claim 2, characterized in that: There are several buffer plates (71), which are arranged in a ring shape at equal intervals.
6. The waterway bridge pier protection structure according to claim 1, characterized in that: Both sides of the sliding rod (5) are fixedly connected to a fixing plate (14), and the inner side of the fixing plate (14) is arc-shaped.